﻿/*
 * Copyright (c) 2015-2016 Constantijn Evenhuis (blueprints@const.nl)
 * 
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 * 
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 * 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */
using System;
using System.Collections.Generic;

namespace Blueprints
{
    partial class BlueprintContext
    {
        private readonly Dictionary<object, Uri> registered = new Dictionary<object, Uri>();
        private readonly HashSet<object> register = new HashSet<object>();

        /// <summary>
        /// Registers an object instance with the context. A registered instance is serialized once per context, and linked
        /// to on subsequent occurrences of the instance. 
        /// </summary>
        /// <param name="instance">The object instance to register.</param>
        public void Register(object instance)
        {
            register.Add(instance);
        }

        internal bool RequiresId(object instance)
        {
            return register.Contains(instance);
        }

        internal void Register(object instance, Uri uri)
        {
            registered[instance] = uri;
        }

        internal bool TryGetRegisteredUri(object instance, out Uri uri)
        {
            return registered.TryGetValue(instance, out uri);
        }
    }
}